Menu affichant les feuilles d'un classeur

Private Sub UserForm_Initialize()
  Dim temp()
  For i = 1 To Sheets.Count
    ReDim Preserve temp(1 To i)
    temp(i) = Sheets(i).Name
  Next i
  n = UBound(temp)
  Call Tri(temp, 1, n)
  Me.ComboBox1.List = temp
  Me.ComboBox1.ListIndex = 0
End Sub

Private Sub UserForm_MouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
    Me.Show
    Me.ComboBox1.SetFocus
    SendKeys "{F4}"
End Sub

Private Sub ComboBox1_Change()
  m = Me.ComboBox1
  Sheets(m).Select
End Sub

Sub Tri(a, gauc, droi)          ' Quick sort
 ref = a((gauc + droi) \ 2)
 g = gauc: d = droi
 Do
     Do While a(g) < ref: g = g + 1: Loop
     Do While ref < a(d): d = d - 1: Loop
     If g <= d Then
       temp = a(g): a(g) = a(d): a(d) = temp
       g = g + 1: d = d - 1
     End If
 Loop While g <= d
 If g < droi Then Call Tri(a, g, droi)
 If gauc < d Then Call Tri(a, gauc, d)
End Sub